* {
    padding: 0;
    margin: 0;
    list-style: none;
    text-decoration: none;
}

html {
    font-size: 5px;
}

nav {
    width: 100%;
    height: 10rem;
    box-shadow: 0 0 0 0.1rem #333;
    background-color: #fff;
    position: fixed;
    bottom: 0rem;
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 0 auto;
}

nav a {
    color: #333;
    font-size: 2rem;
    text-align: center;
    margin: 0 auto;
}

nav .iconfont {
    font-size: 3.6rem;
}

nav a:hover {
    color: #3a9c74;
    text-decoration: none;
}


/* nav a:active {
    color: #3a9c74;
    text-decoration: none;
} */

.center001 {
    /* width: 69rem; */
    margin: 0 auto;
}

.center001 .sousuo {
    /* width: 75rem; */
    height: 8.8rem;
    /* border: springgreen solid 1px; */
    padding: 1rem 0rem;
    margin: 0 auto;
}

.center001 .sousuo input {
    width: 100%;
    height: 8.2rem;
    border-radius: 4.1rem;
    text-align: left;
    padding-left: 2rem;
    font-size: 2.4rem;
    background-color: #f7f7f7;
}

.banner {
    /* width: 69rem; */
    height: 29rem;
    margin: 0 auto;
    margin: 2rem 0rem;
}

.banner .item img {
    height: 100%;
    width: 100%;
}

.leibiao {
    background-color: #fbfbfb;
    /* width: 75rem; */
    margin: 0 auto;
}

.wupin {
    background-color: #fff;
    /* width: 69rem; */
    /* height: 31.5rem; */
    margin: 0rem auto;
    padding: 3rem;
    margin-bottom: 3rem;
}

.wupin .zuo {
    color: #333;
    font-size: 2.6rem;
    line-height: 4rem;
    /* width: 30rem; */
    display: inline-block;
}

.wupin .you {
    color: #999;
    font-size: 2.4rem;
    line-height: 4rem;
    float: right;
}

.wupin .xiangqing {
    margin: 2.5rem 0rem;
}

.wupin .xiangqing img {
    height: 25.5rem;
    width: 25.5rem;
    vertical-align: top;
}

.wupin .xiangqing .wenzi {
    height: 20rem;
    /* width: 40rem; */
    float: right;
}

.wupin .xiangqing p {
    font-size: 2.2rem;
    line-height: 3.6rem;
    margin-left: 2rem;
    color: #777;
}

.wupin .xiangqing button {
    width: 13rem;
    height: 5.5rem;
    background-color: #fff;
    color: #3a9c74;
    border-radius: 5rem;
    border: #3a9c74 solid 0.1rem;
    font-size: 2.4rem;
    line-height: 3.6rem;
    margin: 3rem 2rem;
}

.wupin .xiangqing button:hover {
    color: #fff;
    background-color: #3a9c74;
}

.last {
    width: 100%;
    height: 10rem;
}

.nav {
    display: flex;
    justify-content: space-around;
}

@media screen and (min-width: 320px) {
    html {
        font-size: 4.5px;
    }
}

@media screen and (min-width: 330px) {
    html {
        font-size: 5px;
    }
}

@media screen and (min-width: 375px) {
    html {
        font-size: 5.5px;
    }
}

@media screen and (min-width: 414px) {
    html {
        font-size: 6px;
    }
}

@media screen and (min-width: 445px) {
    html {
        font-size: 6.5px;
    }
}

@media screen and (min-width: 480px) {
    html {
        font-size: 6.5px;
    }
}

@media screen and (min-width: 485px) {
    html {
        font-size: 7px;
    }
}

@media screen and (min-width: 525px) {
    html {
        font-size: 7.5px;
    }
}

@media screen and (min-width: 560px) {
    html {
        font-size: 8px;
    }
}

@media screen and (min-width: 600px) {
    html {
        font-size: 8.5px;
    }
}

@media screen and (min-width: 620px) {
    html {
        font-size: 9px;
    }
}

@media screen and (min-width: 680px) {
    html {
        font-size: 9.5px;
    }
}

@media screen and (min-width: 710px) {
    html {
        font-size: 10px;
    }
}

@media screen and (min-width: 740px) {
    html {
        font-size: 10.5px;
    }
}

@media screen and (min-width: 780px) {
    html {
        font-size: 11px;
    }
}